bʰewk-

“to shine, gleam”

Debatedlightsignal

Source of English beacon, beckon, German Buche (beech)

Root for shining/signaling, yielding English beacon, beckon and possibly beech (the bright tree).‌‍‌‍‍‌‌‌‍‌‌‍‍‍‌‌‍‍‍‌‍‌‌‌‌‍‌‌‌‍‍‍

bʰeh₂-w-“to shine forth, to appear”bʰerǵ-eyo-“to keep brightening, shining”bʰleg-“to shine, burn, flash”bʰlēg-“to shine, to gleam, to burn”bʰleg-eyo-“to keep burning, blazing”bʰleg-mn̥-₂“blaze, shining fire”bʰleh₁-g-“to set on fire, to blaze”bʰleh₁g-“to shine, to be blessed”